Hydrosphere is all the waters (in solid, liquid and gaseous form) of the earth, as distinguished from the land and the gases of the atmosphere. Hydrosphere includes the fresh and salt waters such as oceans, rivers, lakes, streams, glaciers (masses of ice) and water vapor. Most of the earth’s water is salty (about 97%) and they are usually found in the oceans while fresh water is usually found in rivers and lakes.
